TSKgel Alpha-2500色谱柱
TSKgel Alpha Columns for the Analysis of Polar Organic-Soluble Polymers
TSKgel Alpha columns are composed of spherical, hydrophilic methacrylate beads. The main application area for TSKgel Alpha columns is the analysis of polymers that are soluble in polar organic solvents. Examples include cellulose derivatives, polyimide, and sodium dodecylsulfate (all in DMF with 10mmol/L DMF), cleansing gel in methanol, and degree of saponification of polyvinylalcohol in HFIP. Figure 1 shows the calibration curves of all Alpha columns.
Figure 1: Calibration Curves of TSKgel Alpha Columns
Unlike TSKgel PW-type columns, which are stable at most to a 50% organic mixed with water, TSKgel Alpha-type columns are stable in a wide variety of organic solvents at concentrations up to 100%. Suitable solvents are shown in Figure 2.
Figure 2: Solvent Compatibility for TSKgel Alpha-3000 for Organic Solvents
Mixed-bed TSKgel Alpha Column
The mixed-bed column, TSKgel Alpha-M, has an extended linear calibration range, and is suitable for samples with a broad MW distribution as well as samples with unknown molecular weight.
| Base Material: | hydrophilic methacylate |
| Particle Size (mean): | 7 μm |
| Pore size (mean): | 2.5 nm |
| Exclusion Limit (Polyethylene oxide - Water): | 5,000 Da |
| Exclusion Limit (Polystyrene - THF): | 10,000 Da |
| Shipping Solvent | water |
| Max. Pressure Drop: | 4 MPa |
订货信息：
TSKgel Alpha-2500色谱柱
| 货号 | 描述 | 粒径 | 材质 | 内径 (mm) | 长度 (cm) |
| 18339 | TSKgel Alpha-2500 | 7 μm | Stainless Steel | 7.8 | 30 |
| 18345 | Guard Column for P/N 0018339 | 13 μm | Stainless Steel | 6 | 4 |
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